上传文件至 'w8'

w8/Article.java

@@ -0,0 +1,45 @@
+package com.example.datacollect.model;
+
+public class Article {
+    private String title;
+    private String url;
+    private String content;
+    private String author;        // 新增
+    private String publishDate;   // 新增
+
+    // 更新构造器，加入新字段
+    public Article(String title, String url, String content, String author, String publishDate) {
+        this.title = title;
+        this.url = url;
+        this.content = content;
+        this.author = author;
+        this.publishDate = publishDate;
+    }
+
+    // 原有的 getter/setter 保持不变
+    public String getTitle() { return title; }
+    public void setTitle(String title) { this.title = title; }
+
+    public String getUrl() { return url; }
+    public void setUrl(String url) { this.url = url; }
+
+    public String getContent() { return content; }
+    public void setContent(String content) { this.content = content; }
+
+    // 新增 getter/setter
+    public String getAuthor() { return author; }
+    public void setAuthor(String author) { this.author = author; }
+
+    public String getPublishDate() { return publishDate; }
+    public void setPublishDate(String publishDate) { this.publishDate = publishDate; }
+
+    @Override
+    public String toString() {
+        return "Article{"
+                + "title='" + title + '\''
+                + ", url='" + url + '\''
+                + ", author='" + author + '\''
+                + ", publishDate='" + publishDate + '\''
+                + '}';
+    }
+}

w8/CrawlerController.java

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+package com.example.datacollect.controller;
+
+import com.example.datacollect.command.Command;
+import com.example.datacollect.command.CrawlCommand;
+import com.example.datacollect.command.ExitCommand;
+import com.example.datacollect.command.HelpCommand;
+import com.example.datacollect.command.HistoryCommand;
+import com.example.datacollect.command.ListCommand;
+import com.example.datacollect.model.Article;
+import com.example.datacollect.view.ConsoleView;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class CrawlerController {
+    private final Map<String, Command> commands = new HashMap<>();
+    private final ConsoleView view;
+    private final List<Article> articles;
+    private final List<String> history = new ArrayList<>(); // 新增
+
+    public CrawlerController(ConsoleView view, List<Article> articles) {
+        this.view = view;
+        this.articles = articles;
+        register(new HelpCommand(view));
+        register(new ListCommand(view));
+        register(new CrawlCommand(view));
+        register(new ExitCommand(view));
+        register(new HistoryCommand(history)); // 新增
+    }
+
+    private void register(Command command) {
+        commands.put(command.getName(), command);
+    }
+
+    public void handle(String input) {
+        String text = input == null ? "" : input.trim();
+        if (text.isEmpty()) {
+            return;
+        }
+
+        history.add(text); // 新增：每次输入都记录
+
+        String[] args = text.split("\\s+");
+        String cmdName = args[0].toLowerCase();
+        Command command = commands.get(cmdName);
+        if (command == null) {
+            view.printError("Unknown command: " + cmdName);
+            return;
+        }
+        command.execute(args, articles);
+    }
+}

w8/HistoryCommand.java

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+package com.example.datacollect.command;
+
+import com.example.datacollect.model.Article;
+import java.util.List;
+
+public class HistoryCommand implements Command {
+
+    private List<String> history;  // 存储所有历史命令
+
+    public HistoryCommand(List<String> history) {
+        this.history = history;
+    }
+
+    @Override
+    public String getName() {
+        return "history";
+    }
+
+    @Override
+    public void execute(String[] args, List<Article> articles) {
+        if (history.isEmpty()) {
+            System.out.println("No command history yet.");
+        } else {
+            System.out.println("Command History:");
+            for (int i = 0; i < history.size(); i++) {
+                System.out.println("  " + (i + 1) + ". " + history.get(i));
+            }
+        }
+    }
+}